*{
    margin: 0;
    padding: 0;
}
.top-nav{
    height: 36px;
}
.nav-box{
    width: 1190px;
    height: 36px;
    margin: 0 auto;
    display: flex;
}
.box-item:first-child{
    flex: 1;
}
.box-item:last-child{
    flex: 2.5;
}